Home / 5,778.21-7,973.91-3,125.61

Finding the Fourth Proportional to 5,778.21, 7,973.91 and 3,125.61

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Solution

The fourth proportional to 5,778.21, 7,973.91 and 3,125.61 is: 4,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.21 : 7,973.91 = 3,125.61 : x
  2. Step 2: Convert to fraction form
    5,778.21/7,973.91 = 3,125.61/x
  3. Step 3: Cross multiply
    5,778.21x = 7,973.91 × 3,125.61
  4. Step 4: Simplify right side
    5,778.21x = 24,923,332.84
  5. Step 5: Solve for x
    x = 24,923,332.84/5,778.21
  6. Step 6: Final answer
    x = 4,313.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.